Ive noticed this too. Altho it is a decent place to start for people with the entry lenses, or PaS cameras.
Altho not true 1:1 still nice start, it can be kinda hard to get it right with a PaS camera but white balance is important and if you use google you can find some nice tutorials about fixing white balance using photoshop. Also a nice built in tool with CS2 atleast is a thing called variations. Desaturation can be a nice tool to help with this, while not proper white balance, it takes away some of the glow from the lighting and adds a bit of emphasis on the colors in the subject.
I moved your thread into the General Gallery, since The Beginners' Place is more designed to be a Q&A-forum, while the galleries are ... well: galleries. For any of our members, young, old, new to the forums, long-standing members, new to the hobby, seasoned amateurs or pro photogs ... just for anyone. OK?
And to my mind, these are not real macros but close-ups, and the flowers are nice. Some of the first ones taken indoors show traces of camera shake, but the newest set with the bottle are quite nice. They are only just too warm, colour temperature-wise.
With several here, I am not too fond of the very narrow DOF you got when you set your camera to macro ... it is difficult to pull off in low light! But you tried, and that's good.